RTD & his Global Connection

I was watching The End of Time (Part 2) again and all of a sudden it struck me. RTD did it again!! RTD has a fancination for the global connection...

Season 3 Finale: Everyone on Earth thinks the same word... "Doctor".Season 4 Finale: Every phone on Earth dials Martha's cell number.The End of Time Part 2: Every person (Master) on Earth listens for the signal.